Android: RecyclerView Click Listener is not getting in Adapter

I have an array of 600 items. I have put all the array items in a RecyclerView and they are scrolling well. But, when I try to access onClick listener it is not getting called. I also tried to Implement View.OnClickListener and Override onClick in my ViewHolder class, but its not working.

I want to Toast data of the clicked item in the list when user clicks one of the items in the view